New old stock Pioneer valve locks, 5/16 square groove. These are The good stuff made in usa. (I would say these are most likely
30 or so years young). These are new in a bulk box and will be shipped in bags of 32 ea.
Bought Evans machine shop in el monte, Head room, and these were in a cabinet. Evans was one of the oldest
machine shops in calif and had a lot of "made in USA" stuff. If you have any questions, feel free to message me. Thanks